Oil seeping from front cylinder - SV650.org

DarrenSV650S · 22-07-13, 05:25 PM

My oil has been going down a lot recently and I found that it's seeping from the seals on the front cylinder. I totally cleaned it yesterday and this is from about 120 miles today.

What could cause it to suddenly start leaking like that?

Bibio · 22-07-13, 06:55 PM

expansion/contraction and nuts working loose. might be a good idea to check the torque on them.

i doubt that a lot of oil is getting out that seal to make a significant difference. oil always looks worse as it spreads all over the place. for to loose a good amount of oil it would have to have a little puddle under the bike.

have you checked the back oil cooler just in case there is a little hole?

DarrenSV650S · 22-07-13, 07:11 PM

So I need to take the head off the check the tightness of the bolts? It's definitely been loosing a fair bit. I've had to top it up every couple of days. It went from full to just above low one day

Bibio · 22-07-13, 07:14 PM

yup. i doubt that it would loose that much oil from a weep. low to high is about 100+ml is it not.. that's a lot of oil and the bike would be covered in the stuff.

Sid Squid · 22-07-13, 09:15 PM

No, you don't need to take the head off, the fixings are inside the cam boxes and you would need to take the cams out to access them, but the heads don't need to come off. Take a good look around the airbox to see if that oil is coming from there before doing anything further. That amount of visible oil doesn't look like it's enough to account for a significant change in level in the time you've mentioned. Clean the engine very thoroughly and go for a ride, stopping frequently to see if the source can be positively identified.

22-07-13, 05:25 PM	#1
DarrenSV650S Member Mega Poster Join Date: Jul 2006 Location: Dundee Posts: 4,414	Oil seeping from front cylinder My oil has been going down a lot recently and I found that it's seeping from the seals on the front cylinder. I totally cleaned it yesterday and this is from about 120 miles today. What could cause it to suddenly start leaking like that?

22-07-13, 06:55 PM	#2
Bibio Member Mega Poster Join Date: Jul 2008 Location: here as devil's advocate Posts: 11,569	Re: Oil seeping from front cylinder expansion/contraction and nuts working loose. might be a good idea to check the torque on them. i doubt that a lot of oil is getting out that seal to make a significant difference. oil always looks worse as it spreads all over the place. for to loose a good amount of oil it would have to have a little puddle under the bike. have you checked the back oil cooler just in case there is a little hole?

22-07-13, 07:11 PM	#3
DarrenSV650S Member Mega Poster Join Date: Jul 2006 Location: Dundee Posts: 4,414	Re: Oil seeping from front cylinder So I need to take the head off the check the tightness of the bolts? It's definitely been loosing a fair bit. I've had to top it up every couple of days. It went from full to just above low one day

22-07-13, 07:14 PM	#4
Bibio Member Mega Poster Join Date: Jul 2008 Location: here as devil's advocate Posts: 11,569	Re: Oil seeping from front cylinder yup. i doubt that it would loose that much oil from a weep. low to high is about 100+ml is it not.. that's a lot of oil and the bike would be covered in the stuff.

22-07-13, 09:15 PM	#5
Sid Squid No, I don't lend tools. Mega Poster Join Date: Jul 2003 Location: Skunk Works, Nth London Posts: 8,680	Oil seeping from front cylinder No, you don't need to take the head off, the fixings are inside the cam boxes and you would need to take the cams out to access them, but the heads don't need to come off. Take a good look around the airbox to see if that oil is coming from there before doing anything further. That amount of visible oil doesn't look like it's enough to account for a significant change in level in the time you've mentioned. Clean the engine very thoroughly and go for a ride, stopping frequently to see if the source can be positively identified. __________________ If an SV650 has a flat tyre in the forest and no-one is there to blow it up, how long will it be 'til someone posts that the reg/rec is duff and the world will end unless a CBR unit is fitted? A little bit of knowledge = a dangerous thing. "a deathless anthem of nuclear-strength romantic angst"

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